Timur Ina, Putu, 		Diah Puspawati, G.A. Kadek, 		Ekawati, G.A, AND 		Ganda Putra, G.P..
" Characteristics of Phytochemical Compounds and Anthocyanin of Extract from Purple Sweet Potato" <em>Journal of Food Security and Agriculture</em> [Online], Volume 1 Number 2 (1 August 2017)